Runtime support for the indirect function call checker.

Differential Revision: http://llvm-reviews.chandlerc.com/D1339

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@193060 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/ubsan/ubsan_handlers.cc b/lib/ubsan/ubsan_handlers.cc
index 5ed0d5923..d55643143 100644
--- a/lib/ubsan/ubsan_handlers.cc
+++ b/lib/ubsan/ubsan_handlers.cc
@@ -259,3 +259,23 @@ void __ubsan::__ubsan_handle_load_invalid_value_abort(InvalidValueData *Data,
   __ubsan_handle_load_invalid_value(Data, Val);
   Die();
 }
+
+void __ubsan::__ubsan_handle_function_type_mismatch(
+    FunctionTypeMismatchData *Data,
+    ValueHandle Function) {
+  const char *FName = "(unknown)";
+
+  Location Loc = getFunctionLocation(Function, &FName);
+
+  Diag(Data->Loc, DL_Error,
+       "call to function %0 through pointer to incorrect function type %1")
+    << FName << Data->Type;
+  Diag(Loc, DL_Note, "%0 defined here") << FName;
+}
+
+void __ubsan::__ubsan_handle_function_type_mismatch_abort(
+    FunctionTypeMismatchData *Data,
+    ValueHandle Function) {
+  __ubsan_handle_function_type_mismatch(Data, Function);
+  Die();
+}